Updated

Clean Harbors Grassy Mountain vs Chemical Waste Management, Inc

Both: Landfill · Storage · Surface impoundment · Toxic metals (D004–D011) · Treatment.

How they differ

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Clean Harbors Grassy MountainChemical Waste Management, Inc
Location3 Miles East 7 Miles North Of Knolls,exit 41 Of I-80, Knolls, Utah 8402935251 Old Skyline Road, Kettleman City, California 93239
Off-site receipts (latest Biennial Report) 10,000–100,000 tons 10,000–100,000 tons
Violation record (5 years) 21+ violations 1–5 violations
How received waste was managed Landfill Landfill
Waste received, by EPA code class Toxic metals (D004–D011), Electroplating and metal-finishing wastes (F006–F019), Spent solvents (F001–F005), Wood-preserving wastes and leachate (F032–F039) Toxic metals (D004–D011)
Permitted operating units Landfill, Surface impoundment, Treatment, Storage Landfill, Surface impoundment, Treatment, Storage
Final penalties, last 5 years 0 USD 0 USD
Formal enforcement actions, last 5 years 0 0
Last on-site inspection Sep 14, 2026 Jan 13, 2026
EPA ID UTD991301748 CAT000646117
Operator Clean Harbors Environmental Chemical Waste Management, Inc
Waste received from off-site 46,641.3 tons 19,427.8 tons
Inspections, last 5 years 11 6
Violations, last 5 years 21 3
Violations not yet returned to compliance 3 0
Violation areas (5 years) Permit Condition or Requirement, TSD - Container Use and Management, Federal or State Statute, Used Oil - Generators State Statute or Regulation, LDR - Storage Prohibitions
Universal waste destination facility No Yes
Used oil activities Yes No
Transfer facility Yes No
Recycler No No
Primary NAICS 562211 562211
Source recordU.S. EPA RCRAInfo, verified Oct 20, 2026U.S. EPA RCRAInfo, verified Oct 20, 2026

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